Omron EJ1 - 07-2008, Руководство по эксплуатации

Страница: 84 / 198

65
Allocating I/O from the Configurator Section 4-3
Allocating I/O from the
Configurator If data is allocated for both TC2 and TC4 Units, the data will be allocated
according to unit number in each allocated area, regardless of whether the
Units are TC2 or TC4 Units. This may result in the same data in two different
places for the same unit numbers for the channels that are available.
Example: The data in the shaded areas of the following table will be used if a
TC2 Unit set as unit 0 and a TC4 Unit set as unit 1 are connected to
a DeviceNet Communications Unit.
4-3-5 Output Data Details
The output data is divided into the OUT Enable Bit, operation commands, set-
ting data, and expansion remote I/O. This section describes the OUT Enable
Bit and operation commands specific to DeviceNet communications that are
not allocated in the variable areas of the Temperature Controller.
Note 1. The output data will not be valid for Temperature Controllers with which a
communications error has occurred, or which have a communications unit
number that is not registered in the connection configuration.
2. Depending on the Temperature Controller status (e.g., RUN/STOP), some
data may not be valid even if it is written to the OUT Area. For details, refer
to the
EJ1 Modular Temperature Controller User’s Manual (Cat. No. H142).
3. Operation commands are executed only after sending the setting data.
The setting data and operation commands are sent or executed in the or-
der that they are allocated in the OUT Area.
TC2 and TC4
OUT Enable Bit
Note The Output Completed Flags will show the results of processing for
the OUT Enable Bit.
The OUT Enable Bit must be turned ON to enable the output data set in the
output area. If the OUT Enable Bit is OFF, no data will be transferred to the
Temperature Controller even if the output data is written to the OUT Area.
Note 1. The first word of the OUT Area is allocated to the OUT Enable Bit. If the
Configurator is used to allocate I/O and the second or higher words in the
OUT Area are allocated to parameters, the first word will automatically be
allocated for the OUT Enable Bit.
2. Always turn OFF the OUT Enable Bit when downloading setting parame-
ters to the Temperature Controllers using the Configurator. If the OUT En-
TC2 data Unit 7 Unit 6 Unit 5 Unit 4 Unit 3 Unit 2 Unit 1 Unit 0
ch2 ch1 ch2 ch1 ch2 ch1 ch2 ch1 ch2 ch1 ch2 ch1 ch2 ch1 ch2 ch1
TC4 data Unit 3 Unit 2 Unit 1 Unit 0
ch4 ch3 ch2 ch1 ch4 ch3 ch2 ch1 ch4 ch3 ch2 ch1 ch4 ch3 ch2 ch1
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Bit
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 (1)
Number Description
(1) OFF to ON: All parameters in the OUT Area are transferred to the Temper-
ature Controller. (They are transferred only once each time the bit is turned
ON).
ON: Only parameters that are changed in the OUT Area are transferred to
the Temperature Controller.
OFF: Parameters in the OUT Area are not transferred to the Temperature
Controller.